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Because parents did not satisfy with the explanation...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Because parents did not satisfy with the explanation given by the bus driver, they were asking for an official investigation into the accident.
A. did not satisfy
B. given
C. asking for
D. into
Cấu trúc: be satisfied with = thỏa mãn.
Đáp án A.